/* ==========================================================================
   Budget My Reno — Renovation Blowout Calculator
   Form controls, result cards and the sticky results column. Loaded after
   landing.css and pages.css, which supply the shell, tokens and page head.
   ========================================================================== */

.calc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(32px, 4vw, 56px);
  align-items: start;
}

/* ── Form ──────────────────────────────────────────────────────────────── */
.calc-form { display: flex; flex-direction: column; gap: 36px; min-width: 0; }

.calc-group { margin: 0; padding: 0; border: 0; min-width: 0; }
.calc-group > legend {
  padding: 0;
  margin: 0 0 18px;
  font: 600 clamp(19px, 2vw, 22px)/1.25 var(--sans);
  color: var(--ink);
}

.calc-field { display: flex; flex-direction: column; gap: 10px; }
.calc-field + .calc-field { margin-top: 22px; }
.calc-label { font: 500 14px/1.4 var(--sans); color: var(--ink); }
.calc-hint { margin: 0; font: 400 13px/1.5 var(--sans); color: var(--muted); }

/* Amount: currency select as a prefix to the number field. */
.calc-amount {
  display: flex;
  align-items: stretch;
  max-width: 420px;
  border: 1px solid #D1D5DB;
  background: #F9FAFB;
}
.calc-amount:focus-within { border-color: var(--accent); }
.calc-amount select {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-right: 1px solid #D1D5DB;
  background: #F3F4F6;
  padding: 0 34px 0 16px;
  font: 600 16px/1 var(--sans);
  color: var(--ink);
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, #6B7280 50%), linear-gradient(135deg, #6B7280 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.calc-amount input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 16px 18px;
  font: 600 clamp(22px, 2.4vw, 28px)/1 var(--sans);
  color: var(--ink);
  letter-spacing: -.01em;
}
.calc-amount input:focus,
.calc-amount select:focus { outline: none; }
.calc-amount input::placeholder { color: #9CA3AF; font-weight: 500; }

/* Chips: the input stays in the DOM for keyboard and screen readers, the
   span is what you see. */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; display: inline-flex; }
.chip input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.chip span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid #D1D5DB;
  background: #FFFFFF;
  font: 500 14px/1.2 var(--sans);
  color: var(--ink);
  transition: border-color .12s ease, background-color .12s ease, color .12s ease;
}
.chip:hover span { border-color: #9CA3AF; }
.chip input:checked + span {
  border-color: var(--accent);
  background: var(--accent);
  color: #FFFFFF;
}
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Nested options that only appear for a ticked scope item. */
.calc-sub {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 12px;
  padding: 14px 16px;
  background: #F9FAFB;
  border-left: 2px solid var(--line);
}
.calc-sub[hidden] { display: none; }
.calc-sub-label { font: 500 13px/1.3 var(--sans); color: var(--body); }
.stepper { display: inline-flex; align-items: center; gap: 8px; }
.stepper input {
  width: 64px;
  padding: 9px 10px;
  border: 1px solid #D1D5DB;
  background: #FFFFFF;
  font: 600 15px/1 var(--sans);
  color: var(--ink);
  text-align: center;
}
.stepper input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.check { display: inline-flex; align-items: center; gap: 9px; font: 500 14px/1.3 var(--sans); color: var(--ink); cursor: pointer; }
.check input { width: 18px; height: 18px; margin: 0; accent-color: #4C4CBD; }

/* Range: the held-contingency slider. */
.calc-range { display: flex; align-items: center; gap: 16px; max-width: 420px; }
.calc-range input[type="range"] { flex: 1; accent-color: #4C4CBD; }
.calc-range output { min-width: 3.2em; font: 600 18px/1 var(--sans); color: var(--ink); text-align: right; }

/* ── Results ───────────────────────────────────────────────────────────── */
.results {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.res-placeholder {
  padding: 34px 28px;
  border: 1px dashed #D1D5DB;
  font: 400 16px/1.6 var(--sans);
  color: var(--body);
}
.res-placeholder[hidden] { display: none; }
#r-body[hidden] { display: none; }
#r-body { display: flex; flex-direction: column; gap: 18px; }

.res-card {
  padding: clamp(22px, 2.6vw, 30px);
  background: #F0F0FB;
  border: 1px solid var(--line);
}
.res-card h2 {
  margin: 0 0 14px;
  font: 600 17px/1.3 var(--sans);
  color: var(--ink);
}
.res-card-dark { background: var(--ink); color: #F0F0FB; border-color: var(--ink); }

.res-lead { margin: 0 0 6px; font: 500 15px/1.4 var(--sans); color: #C7C9F5; }
.res-big {
  margin: 0 0 12px;
  font: 600 clamp(38px, 4.4vw, 52px)/1 var(--sans);
  letter-spacing: -.02em;
  color: #FFFFFF;
}
.res-note { margin: 0; font: 400 15px/1.55 var(--sans); color: #C7C9F5; }
.res-note strong { color: #FFFFFF; font-weight: 600; }

.res-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font: 400 15px/1.4 var(--sans);
  color: var(--body);
}
.res-row strong { color: var(--ink); font-weight: 600; text-align: right; }
.res-row-muted { margin-top: 10px; font-size: 13px; color: var(--muted); }
.res-verdict { margin: 10px 0 0; font: 400 15px/1.55 var(--sans); color: var(--ink); }

/* Drivers */
.drivers { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.driver { padding: 14px 0; border-top: 1px solid var(--line); }
.driver:first-child { border-top: 0; padding-top: 0; }
.driver-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.driver-label { font: 600 15px/1.3 var(--sans); color: var(--ink); }
.driver-range { margin-top: 3px; font: 500 14px/1.3 var(--sans); color: var(--accent); }
.driver-reason { margin: 6px 0 0; font: 400 13.5px/1.5 var(--sans); color: var(--body); }

.tag {
  flex: none;
  padding: 4px 9px;
  font: 600 11px/1 var(--sans);
  letter-spacing: .04em;
  text-transform: uppercase;
  border: 1px solid transparent;
}
.tag-likely { background: #FEF3C7; color: #92400E; border-color: #FDE68A; }
.tag-possible { background: #EEF2FF; color: #3730A3; border-color: #C7D2FE; }
.tag-builtin { background: #E5E7EB; color: #374151; }
.tag-band { background: #ECFDF5; color: #065F46; border-color: #A7F3D0; }

/* Labour vs materials */
.split-bar { display: flex; height: 40px; overflow: hidden; }
.split-seg { display: flex; align-items: center; padding: 0 12px; min-width: 0; font: 600 12px/1 var(--sans); white-space: nowrap; overflow: hidden; }
.split-labour { background: var(--accent); color: #FFFFFF; }
.split-materials { background: #DDDDF5; color: var(--ink); }

/* Distribution */
.dist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.dist-head { display: flex; justify-content: space-between; gap: 12px; font: 400 14px/1.4 var(--sans); color: var(--body); }
.dist-head strong { color: var(--ink); font-weight: 600; }
.dist-track { height: 8px; background: #DDDDF5; margin-top: 5px; }
.dist-bar { height: 100%; background: var(--accent); }

/* Actions */
.res-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.res-actions .btn-primary { display: inline-block; text-align: center; }
.res-actions .btn-primary[aria-disabled="true"] { opacity: .5; pointer-events: none; }
.res-actions .btn-ghost { background: transparent; cursor: pointer; }
.copy-status { margin: 0; min-height: 1.4em; font: 500 13px/1.4 var(--sans); color: #065F46; }
.res-disclaimer { margin: 0; font: 400 12.5px/1.5 var(--sans); color: var(--muted); }

/* ── How it works ──────────────────────────────────────────────────────── */
.calc-explainer {
  margin-top: clamp(44px, 6vw, 72px);
  padding-top: clamp(34px, 4.6vw, 48px);
  border-top: 1px solid var(--line);
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .calc-layout { grid-template-columns: 1fr; gap: 40px; }
  .results { position: static; }
}

@media (max-width: 480px) {
  .calc-amount select { padding: 0 30px 0 12px; }
  .calc-amount input { padding: 14px 12px; }
  .chip span { min-height: 40px; padding: 0 13px; font-size: 13.5px; }
  .res-actions .btn-primary, .res-actions .btn-ghost { width: 100%; }
}